I am using lambda expression under Dev-C++ for scientific computing. And the program run well. But the time consumed by the program is too much for data execution. I think this may be happened by the complier of Dev-C++(for compatibility). I am using C++ builder2009 for RAD. And this is said not suooprt Lambda expression. My computer is too limited for Visual C++ studio being installed ,which is supposed to support lambda expression. Can anyone with kindness tell me which complier can be used for lambda expression?